The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
May. 17, 2013
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Jin Seung Son, Austin, TX (US);
Prashant Kenkare, Austin, TX (US);
Abstract
According to the inventive concepts disclosed herein, a level shifter can include an input node in a first voltage domain and an output node in a second voltage domain, higher than the first voltage domain. The input node receives an input signal in the first, lower-voltage domain, and the output node is configured to output a representation of the input signal in the second, higher-voltage domain. A lower-voltage control circuit can control a supply of the lower-voltage level to a boundary node arranged at a boundary between the first and second domains. A higher-voltage control circuit can also be provided to control a supply of the higher-voltage level to the boundary node. The lower-voltage control circuit can cut off the lower-voltage supply to the boundary node when the higher-voltage control circuit supplies the higher-voltage level to the boundary node. The higher-voltage control circuit can, for instance, include logic circuitry that enables and disables a connection to the higher-voltage supply. Alternatively, the higher-voltage control circuit can include a boost capacitor coupled between the output node and the boundary node.